Especially if you don't want a 1st year model. See oil issue with '13 M5, Rod bearing in 1st year E46 M3's, detuned motor in '95 M3, smaller Nav and old headlights in 2000 M5.
Current: '13 E92 M3 Euro Delivery
Wife's: E39 M5, E36 M3
Gone: E86 M Coupe; E30 M3